mount: mounting /dev on /root/dev failed : no such file or directorymount: mounting /sys on /root/sys failed : no such file or directorymount: mounting /proc on /root/proc failed : no such file or directory

ubuntu@ubuntu:~$ sudo fsck -f -y /dev/sda2fsck from util-linux-ng 2.17.2e2fsck 1.41.12 (17-May-2010)fsck.ext2: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda2Could this be a zero-length partition?

ubuntu@ubuntu:~$ sudo fsck -f -y /dev/sda3fsck from util-linux-ng 2.17.2e2fsck 1.41.12 (17-May-2010)fsck.ext2: No such file or directory while trying to open /dev/sda3

The superblock could not be read or does not describe a correct ext2filesystem. If the device is valid and it really contains an ext2filesystem (and not swap or ufs or something else), then the superblockis corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device>

ubuntu@ubuntu:~$ sudo fsck /dev/sda1fsck from util-linux-ng 2.17.2e2fsck 1.41.12 (17-May-2010)fsck.ext4: Device or resource busy while trying to open /dev/sda1Filesystem mounted or opened exclusively by another program?ubuntu@ubuntu:~$ sudo fsck /dev/sda2fsck from util-linux-ng 2.17.2e2fsck 1.41.12 (17-May-2010)fsck.ext2: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda2Could this be a zero-length partition?ubuntu@ubuntu:~$ sudo fsck /dev/sda3fsck from util-linux-ng 2.17.2e2fsck 1.41.12 (17-May-2010)fsck.ext2: No such file or directory while trying to open /dev/sda3

The superblock could not be read or does not describe a correct ext2filesystem. If the device is valid and it really contains an ext2filesystem (and not swap or ufs or something else), then the superblockis corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device>

ubuntu@ubuntu:~$ fsck -y /dev/sda1fsck from util-linux-ng 2.17.2e2fsck 1.41.12 (17-May-2010)fsck.ext2: Permission denied while trying to open /dev/sda1You must have r/w access to the filesystem or be rootubuntu@ubuntu:~$ rThe program 'r' is currently not installed. You can install it by typing:sudo apt-get install littlerYou will have to enable the component called 'universe'

ubuntu@ubuntu:~$ sudo apt-get install littlerReading package lists... DoneBuilding dependency tree Reading state information... DoneE: Unable to locate package littlerubuntu@ubuntu:~$ fsck -y /dev/sda1fsck from util-linux-ng 2.17.2e2fsck 1.41.12 (17-May-2010)fsck.ext2: Permission denied while trying to open /dev/sda1You must have r/w access to the filesystem or be rootubuntu@ubuntu:~$ fsck -y /dev/sda2fsck from util-linux-ng 2.17.2e2fsck 1.41.12 (17-May-2010)fsck.ext2: Permission denied while trying to open /dev/sda2You must have r/w access to the filesystem or be rootubuntu@ubuntu:~$ fsck -y /dev/sda3fsck from util-linux-ng 2.17.2e2fsck 1.41.12 (17-May-2010)fsck.ext2: No such file or directory while trying to open /dev/sda3

The superblock could not be read or does not describe a correct ext2filesystem. If the device is valid and it really contains an ext2filesystem (and not swap or ufs or something else), then the superblockis corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device>